Feedeeick walton



(Nd Model.)

F. WALTON. MANUFACTURE OF 0x11112131) ORSOLIDIFIBD 01 No. 354,755.PatentedDep. 21, 1886.

NITED STATES PATENT OFFICE.

FREDERICK WALTON, on HEATHAM HOUSE, TWIOKENHAM, COUNTY OF MIDDLEsEx,ENGLAND' MANUFACTURE OF OXIDIZED OR SOLIDIFIED OIL.

SPECIFICATION forming part of Letters Patent No. 354,755, dated December21, 1886. Application filed August 23, 1886. Serial No. 211,695. (Nomodel.) Patented in England July 7, 1885, No. 8,250.

To all whom it may concern.-

Be it known that I, FREDERICK WALTON, a subject of the Queen of GreatBritain, residing at Heatham House, Twickenham, in the county ofMiddlesex, England, manufacturer, have invented certain new and usefulImprovements in the Manufacture of Oxidized or Solidified Oil, (forwhich I have received Letters Patent in Great Britain, No. 8,250, datedthe 7th day of July, 1885,) of which the following is a specification.

In the manufacture of solid or oxidized oil as now usually employed theoil is exposed in thin films on extensive surfaces of cotton fabric of avery light texture until by a repetition of dried films a thickness ofhalf an inch or so is obtained, when the whole mass of oil coating thelight fabric is broken up and used for the manufacture of linoleum andother cements. This process is open to inconvenience, which I propose toremedy. In the first place I save the expense of the cotton or otherfabric, and'I obtain oxidized oil which is free from fiber, the presenceof which is very ob- U jectionable in the manufacture-of insulated wire,and in other cases it is inconvenient, as it is liable to interfere withthe material being spread evenly over surfaces.

Another advantage of the process which I now employ is, that I can firstreduce the oil almost to a treacly or semi-fluid state by wellknownpreparatory processes, and afterward solidify it in films at a muchquicker rate than by the old process formerly patented by me and now ingeneral use.

As oil cannot by ordinary means be spread over large surfaces evenlyunless of a certain liquidity, and as the thickness of the film thatremains to be dried depends on the thickness or viscidity of the oil, itwill be seen that great gain is obtained by the employment of a processwhich admits of a more viscid and clinging oil being used, which willnot run off the surfaces exposed to drying action. Especially is thisthe case where, as with the mechanism which I provide, the arrangementsadmit of the application of a current of air charged with p an abundanceof oxygen at any desired temperature, or charged with any other gases orliquids that may be conducive to thesoliclify- I ing action.

My improved process has also the advantage that the fumes given 0% canbe blown into a furnace to be consumed, and so all cause of nuisance isavoided.

The apparatus whichI employ consists of a number of closed metalchambers connected together by pipes arranged so that the inlet is atthe top and the outlet at the bottom of each. They form a continuousseries. Each chamber is filled with oil-accumulating plates, forwhichthin sheets of wrought-iron are suitable. The oil-accumulating platesshould be set about one inch to one inch and a half apart. The oil,previously prepared by boiling and thick- 7 ened by blowing air throughit, or otherwise, 'is introduced, by means of a pump, into one or two ofthe chambers, after which air is forced into the chambers. The airpresses forward the oil out of one chamber into the next, and sothroughout the series of chambers, and covers all the oil-accumulatingplates in the chambers with a film of oil. So soon as the oil is forcedout of the last chamber air continues tion, of the oxidizing apparatus.Fig. 2 shows a plan of the same A A A are cast or wrought iron chambersof any convenient size. Their number depends on the quantity of oxidizedoil to be produced in a given time. These chambers A are connected bypipes H in such a way that the inlet is at the upper part of eachchamber and-the outlet at the bottom, which bottom has the shape of asquare funnel. At the bottom of this funnel is an inward-lifting valve,G. A cock may be substituted for this valve.

The lids B of the chambers A are provided with hooks c for lifting them.They are also provided with air-valves D.

Inside each chamber A is an iron frame, E,

a carrying a number of oil-accumulating plates,

which are set in a distance one from the other of about one inch.

The lids B and the frames E are lifted out and set in place a travelingcrane. (Not 'shown in the draw'ingsl The chambers A have at F aman-hole, to

I enable the attendant to observe from time to nected with a rotarypump. M is the suction- U nearly to the bottom of the oil-tank R.

pipe for the same pump. This pipe descends The hot-air blower islikewise connected with the pipe L, so that the air can be driven eitherthrough the chambers A, finding its outlet by the pipe N near the bottomof the tank, or it can be driven direct into the tank through pipe L, orthrough both pipes at the same time. At the top of pipe H is the pipe J,with a cock. This pipe is connected with an air-compressor.

Q is a coil of pipes heated by steam. Q, is the outlet branch of thispipe.

The hot air driven through the oil finds its outlet by pipe 1?, whichdischarges the air and gases into a flue, 0, from whence it is led undera furnace. This furnace is used for heating the air for the blowingfan.The heating of the air is effected by a coil of pipes which are incontact with the fire. On the top of the tank R isa man-hole, S.

The Working of the apparatus is as follows: The tank R is kept aboutthree quarters full of boiled oil. The valve K is opened, as also thevalve D on the lid of vessel A". The pump is now set in motion, and oilis discharged into the vessel A, and when this box is full the valve Don the chamber A is shut and D on A is opened. The pump is now put outof action,the valve K is shut, the cock on pipe J is opened, andcompressed air is driven into A The oil is forced by this out of A intoA. The valve D on this chamber is then shut and D on A opened. The oilis now driven from A to A. \Vhen A is full, the oil is dischargedthrough H and N into the tank R. The aircompressor is now put out ofaction, the cock on the pipe J is shut, the valves K opened, and thehot-air blower is put in motion. Hot air is now driven in great volumethrough the pipe L and through all the chambers. It oxidizes the oiladhering to the oil-accumulating plates inside the boxes A. At the sametime hot air may be driven through the pipe L into the oil in the tank,by which process the oil is thickened and rendered more adhesive. Theoxidizing and so lidifyingv of the films of oil upon the plates takeplace in one to two hours, according to the quantity and temperature ofthe air driven through the chambers and the oil in the tank. From 120 to180 will be found suitable temperatures to which to heat the air. Theair can, however, be heated to any desired degree, and any volume andpressure may be employed. The air can be charged with oxygen or othergas or fumes that will tend to oxidize or produce other desired changesin the oil. The air may be ozonized by passing it between sheets ofglass highly charged with electricity from a Ruhmkorfl or other coil'aprocess well known.

Chemicals or liquids may be passed through the apparatus to facilitateoxidation and solidification of the oil. I can thus expose films of oilto any desired action of liquids or gases which is not possible by theold process.

\Vhen the oil-accumulating plates have received a thick coating ofoxidized oil by the repeated application of films, they are removed fromthe apparatus, and the oil can then be stripped oft'in the followingmanner: An end less band of metal, preferably brass, runs over twopulleys some distance apart. The band is heated to a temperature ofabout 400 to- 600 Fahrenheit. Oil-accumulating plates are passed throughwood rollers, which force the surfaces of the plates against the heatedband. The heat acts on the oil, partially liquefying it at the point ofcontact, and so enabling it to be removed from the plates withoutabrading the surface of the metal itself. When one side of a plate iscleaned, the plate is reversed.

Having now particularly described and ascertained, the nature of my saidinvention and in what manner the same is to be performed, I declarethat'what I claim is- 1. My improvement in the manufacture of oxidizedor solidified oil, consistingin employiug chambers containing oilaccumulating plates, in filling such chambers with oil, then emptyingthe same, so as to leave a film of oil on the plates, and forcing acurrent of air through the chambers, substantially as described. V

2. The combination, in an apparatus for the manufacture of oxidized orsolidified oil, of closed chambers A, oil-accumulating plates withinthese chambers, and connections for filling and emptying the chambersand for passing heated air through them, all substantially as described.I a

' FREDERICK \VALTON.

\Vitncsses HERBERT E. DALE,

T. J. ORMANS, Both of 17 Graceflmrch Street, London, E. 0.

